i would check a rheumatologist
might be arthritis fibromyalgia
i have both and get crab hands depending on weather and how much i use them
a good rheumatologist could help best
good luck hope you find answers and relief
I also suffer from pain in my right hand all the time. When I write something than it becomes more stiff & I find it difficult to write for a long time.
it depends on how bad my attacks are i get knumbness everywhere
its hart to know with panic attacts whats the heart or a panic attact
read my other panic anxiety and other posts for ways to deal with them
good luck